▎ 摘　　要

NOVELTY - Cathode material comprises a core material (280)and a cladding material coated on the surface of the core material. The preparation raw materials of the core material include silicon material (240), carbon-based material (220) and adhesive. USE - The cathode material is used in lithium-ion batteries (claimed). ADVANTAGE - The method: improves the uniformity of the battery slurry and the liquid seepage of the cathode material, and can effectively inhibit the expansion of silicon, and improves the cycle stability of the battery; increases the energy density of the battery; improves the overall competitiveness of the product, and the economic benefit is remarkable. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing cathode material comprising mixing the silicon material, carbon-based material and adhesive, sequentially pressing, sintering, crushing and crushing to obtain the core material, using coating material to coat the core material to obtain cathode material. DESCRIPTION OF DRAWING(S) - The drawing shows a structural schematic view of cathode material. 200Hard carbon material 220Carbon-based material 240Silicon material 280Core material